CN109113694A - A kind of sealing distributor and its working method with intubation - Google Patents
A kind of sealing distributor and its working method with intubation Download PDFInfo
- Publication number
- CN109113694A CN109113694A CN201811168612.6A CN201811168612A CN109113694A CN 109113694 A CN109113694 A CN 109113694A CN 201811168612 A CN201811168612 A CN 201811168612A CN 109113694 A CN109113694 A CN 109113694A
- Authority
- CN
- China
- Prior art keywords
- intubation
- ball
- seat
- distributor
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002627 tracheal intubation Methods 0.000 title claims abstract description 83
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 210000000078 claw Anatomy 0.000 claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of sealing distributor with intubation, including sealing distributor, intubation and ball-and-seat；Intubation is placed in sealing distributor cavity, cannula body outer wall fits with seal assembly, spacer ring respectively, it will be formed between first annular space and cannula outer wall and inner tube between cannula outer wall and the first top connection and form the second annular space and separate, separate and be intubated inside and outside waterflood path, lock claw stretches out sealing distributor cavity and is connected with ball-and-seat.The working method for sealing distributor with intubation that the invention discloses a kind of, behind tool tubular column tripping in predetermined position, the pin that truncation piston component is suppressed out of inner tube is opened piston and is normally filled the water；When needing lift pipe string with pressure, first stop to infuse, above propose intubation and ball-and-seat is driven to go upward at the second annular space, sealing distributor water outlet is closed, completely cut off in the incoming sealing distributor of the high pressure water in casing, meets the Operating Pressure demand of two-tube dispensing " inner tube normal pressure, outer tube are with pressure ".
Description
Technical field
The invention belongs to oil extraction in oil field technical field, especially a kind of oil-field flooding, polymer injection field use two-tube point
Infuse a kind of sealing distributor and its working method with intubation of technique.
Background technique
With going deep into for water flooding, to grasp each water filling interval condition of production in real time, reservoir temperature, pressure are understood
The basic conditions such as power, permeability carry out two-tube dispensing technical research, and the technology is accurate with flow adjusting, surveys tune simply, technique
The advantages that simple.There is application in oil field to the technology more at home, but does not carry out Operating Pressure research, temporarily double without being suitble in the market
Therefore the intubation and sealing distributor of pipe dispensing Operating Pressure are badly in need of such product and fill a hole in the market, to meet fine water filling
Needs.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of sealing distributor with intubation and
Its working method.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of sealing distributor with intubation, including distributor ontology, intubation and ball-and-seat；Intubation is located at distributor sheet
In the cavity of body, first annular space is formed between cannula outer wall and the first top connection, and is formed between cannula outer wall and inner tube
The seal assembly in second ring space, cannula outer wall and distributor ontology fits, and two annular spaces are separated；Intubation is stretched out
The tail end of the cavity of distributor ontology is connected with ball-and-seat；When above proposing intubation, intubation drives ball-and-seat to go upward to the second annular
At space, the third apopore in distributor ontology inner tube is closed.
Further, the intubation includes intubation tube body, and intubation tube body head is set in the second top connection, is intubated tube body
Tail end is equipped with lock claw, and the intubation tube body at lock claw is equipped with the second apopore；Intubation stretches out the tail of distributor ontology cavity
End is connected by lock claw with ball-and-seat.
Further, intubation tube body is divided into two sections, is connected as one by connector；It is intubated at the tail end connection lock claw of tube body
Equipped with the second centering ring for righting lock claw.
Further, distributor ontology includes the first centering ring, and the first centering ring periphery is equipped with the first top connection, on first
Inner nosepiece wall lower end is equipped with inner tube, and the first top connection outer wall lower end is equipped with outer tube；It is equipped with and lives in gap between inner and outer tubes
Plug, the tail portion of inner and outer tubes are arranged with lower contact, and outer tube is equipped with the first apopore；The junction of inner tube and the first top connection
Equipped with seal assembly；
Intubation is set in the cavity of distributor ontology, and the first centering ring will be intubated tube body righting and placed in the middle, is intubated outside tube body
Wall and the seal assembly of distributor main body fit, and two annular spaces are separated.
Further, the seal assembly includes annular seal ring and accessory；Inner tube after seal assembly be equipped with every
Ring；
Intubation tube wall fits with seal assembly, spacer ring respectively, forms the second ring between intubation tube body and inner tube
Shape space.
Further, piston crown is fixed by a pin in inner tube, and piston tail end corresponds to the first apopore section start；
When inner tube is suppressed, the pin of fixed piston is truncated, and piston slides to the gap bottom between inner tube and outer tube.
Further, ball-and-seat includes ball-and-seat main body, and ball-and-seat main body peripheral front end is equipped with the T being interference fitted with inner tube
Type sealing ring, rear end are equipped with the position-limited claw being interference fitted with inner tube；Ball-and-seat main body inner wall is equipped with to match with the boss of lock claw
Close the interior step of positioning；The center line of ball-and-seat is equipped with compression bar, and compression bar lower part is equipped with spring, on the compression bar at spring the initial segment
Equipped with convex block；Compression bar end is equipped with the second convex block, and the second convex block cooperation sealing ring and baffle ring realize the positioning of compression bar jointly.
Further, ball-and-seat further includes the ball-and-seat shell being set in outside ball-and-seat main body.
Further, ball-and-seat shell includes ball-and-seat enclosure cavity and the ball-and-seat for being placed in ball-and-seat enclosure cavity bottom
Flowing water duct is distributed on ball-and-seat shell bottom plate in shell bottom plate.
A kind of working method of the sealing distributor with intubation, comprising the following steps:
1) intubation being placed in distributor body cavity body, the seal assembly of cannula outer wall and distributor ontology fits, every
First annular space and the second annular space are opened, to separate the inside and outside waterflood path of intubation；
2) behind tool tubular column tripping in predetermined position, the pin that truncation piston is suppressed out of inner tube is opened piston and is normally infused
Water；
3) when needing lift pipe string with pressure, first stop to infuse, above propose intubation and drive at ball-and-seat row to the second annular space, it will
The third water outlet of distributor ontology inner tube is closed, and the incoming sealing distributor top of high pressure water in casing is completely cut off.
Compared with prior art, the invention has the following advantages:
Intubation is placed in sealing distributor, seal assembly by a kind of sealing distributor with intubation provided by the invention
It is bonded to form sealing with intubation surface, separates and be intubated inside and outside waterflood path；Behind tool tubular column tripping in predetermined position, out of inner tube
Suppress can be truncated piston component pin open piston normally fill the water；When needing lift pipe string with pressure, first stop to infuse, above proposes intubation simultaneously
It drives ball-and-seat row to ring packing section, sealing distributor water outlet is closed, the incoming sealing of the high pressure water completely cut off in casing is matched
It infuses in device, meets the Operating Pressure demand of two-tube dispensing " inner tube normal pressure, outer tube are with pressure ".It is provided by the invention a kind of with intubation
Sealing distributor working method, easy to operate, solving after conventional seals tool proposes intubation can not be automatically closed, completely cuts off
Casing pressure, the problem of can not achieve two-tube dispensing Operating Pressure.
Detailed description of the invention
Fig. 1 is the half sectional view of the structure of the sealing distributor provided by the invention with intubation；
Fig. 2 is the structure half sectional view when sealing distributor provided by the invention with intubation is intubated uplink；
Fig. 3 is distributor body construction half sectional view provided by the invention；
Fig. 4 is cannula structures cross-sectional view provided by the invention；
Fig. 5 is ball-and-seat cored structure half sectional view provided by the invention；
Fig. 6 is ball-and-seat shell mechanism half sectional view provided by the invention；
Fig. 7 is the left view of ball-and-seat shell bottom plate provided by the invention.
Wherein: the second top connection of 01-；02- connector；03- cannula body；The second apopore of 04-；The second centering ring of 05-；
06- lock claw；The first centering ring of 11-；12- seal assembly；13- piston；The first top connection of 14-；15- spacer ring；16- inner tube；Outside 17-
Pipe；18- lower contact；30- ball-and-seat；31-T type sealing ring；32- ball-and-seat main body；33- spring；34- position-limited claw；35- compression bar；
36- sealing ring；37- baffle ring；41- ball-and-seat enclosure cavity；42- ball-and-seat shell bottom plate.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
The invention will be described in further detail with reference to the accompanying drawing:
Intubation is mainly by the second top connection 01, connector 02；Cannula body 03, the second apopore 04, the second centering ring 05
It is formed with lock claw 06；Cannula body 03 is connected with the second top connection 01, connector 02 and lock claw 06 by screw thread, cannula body 03
Second apopore and the second centering ring 01 are arranged at lower part.
Distributor ontology is mainly made of the first centering ring 05, seal assembly 12, piston 13, ball-and-seat core 30；First helps
Just 05 major function of ring is the intubation righting being placed in sealing distributor and placed in the middle, guarantee intubation sealing surface and the patch of sealing ring 36
It closes uniformly, and prevents intubation front end lock claw from scratching sealing ring 36；Seal assembly 12 be mainly used for intubation surface be bonded to be formed it is close
Envelope separates and is intubated inside and outside waterflood path；13 major function of piston is that with pressure go into the well prevents high pressure entering tool in pit shaft in the process
It is interior, behind tool tubular column tripping in predetermined position, truncation pin is suppressed out of pipe and opens the normally water filling of piston 13；Ball-and-seat 30 is main
Function is when needing lift pipe string with pressure, and intubation drives ball-and-seat 30 to go upward to the outer stratum of sealed tube at the second ring packing space
Pressure realizes normal pressure lift pipe string；Ball-and-seat core housing major function is the ball-and-seat core for placing ball-and-seat and limiting its position
There are overcurrent ducts on outer casing base, sink convenient for the impurity in the injecting process, not blocking channel.
In use, intubation is placed in the cavity of distributor ontology, the tail end of intubation is connected to ball-and-seat 30, referring to Fig. 1, figure
1 is the half sectional view provided by the invention with the structure for sealing distributor being intubated.First top connection of the distributor ontology
14 are connected on outer layer tubing string, enter in well under environment with pressure, and the high pressure water completely cut off in casing is entered by distributor ontology
In pipe；Intubation is connected in internal layer tubing string bottom tripping in outer tube, and is formed and sealed with the seal assembly 12 in distributor ontology,
First annular space and the second annular space are separated, two mutually independent waterflood paths are formed.Since piston 13 utilizes pin
Nail is fixed on the first apopore of outer tube 17, and outlet is blocked herein, cannot fill the water.
When needing normal water filling, piston 13 is prevented in pit shaft during with pressure go into the well in high pressure entering tool；Work as work
After having tubing string tripping in predetermined position, the pin of truncation fixed piston 13 is suppressed out of inner tube 16, opens piston 13 and downlink starts
Normal water filling.
Referring to fig. 2, Fig. 2 is the structure half section when sealing distributor provided by the invention with intubation is intubated uplink
Figure；When needing lift pipe string with pressure, first stop to infuse, above propose intubation and ball-and-seat 30 driven to go upward at the second ring packing space,
It is discharged bore closure by the first of inner tube 16, completely cuts off in the incoming sealing distributor of the high pressure water in casing, meets two-tube dispensing " inner tube
Normal pressure, outer tube are with pressure " Operating Pressure demand.
Referring to Fig. 3, Fig. 3 is distributor body construction half sectional view provided by the invention, and the present invention provides a kind of group of assembly
The method for infusing device ontology, comprising the following steps:
Inner tube 16 is first connect by the first step with lower contact 18；
Piston 13 is fixed by a pin in inner tube 16 by second step；
Seal assembly 12 is packed into inner tube 16 by third step；
Outer tube 17 is inserted in inner tube 16 by the 4th step, and is connect with lower contact 18 tightly by screw thread；
First top connection 14 is connected through a screw thread tightly by the 5th step with outer tube 17；
First centering ring 11 is fitted into the first top connection 14, and is tightened by screw thread by the 6th step, completes injection well downhole flow regulator ontology
Assembling.
Referring to Fig. 4, Fig. 4 is cannula structures cross-sectional view provided by the invention, and the present invention provides a kind of assemble method of intubation,
The following steps are included:
The sealing ring of connector 02 is first mounted in seal groove by the first step；
Cannula body 03 and connector 02 are separately connected by second step；
Second top connection 01 is connect by third step with cannula body 03；
Second centering ring 05 is located at one end tail portion of the cannula body 03 with apopore by the 4th step, then by the close of lock claw 06
Seal is installed here, is connected through a screw thread, and the assembling of intubation is completed.
Referring to Fig. 5, Fig. 5 is ball-and-seat cored structure half sectional view provided by the invention, and the present invention provides a kind of ball-and-seat core
Assemble method, comprising the following steps:
Spring 33 is fitted into compression bar 35 by the first step, then the compression bar 35 with spring is firmly fitted into ball-and-seat main body 32；
Sealing ring 36 is packed into 35 seal groove of compression bar, then baffle ring 37 is consolidated by screw thread and 35 lower end of compression bar by second step
It is fixed tight, it is ensured that sealing ring 36 is firm, and posts with ball-and-seat main body 32, can normally seal；
T-type sealing ring 31 and component are packed into ball-and-seat main body 32 by third step；
Position-limited claw 34 is threadedly attached in ball-and-seat main body 32, and fixes by the 4th step, completes ball-and-seat core
Assembling.
Referring to Fig. 6, Fig. 6 is ball-and-seat shell mechanism half sectional view provided by the invention, and the present invention provides a kind of ball-and-seat
The assemble method of shell, comprising the following steps:
Ball-and-seat shell bottom plate 42 is filled to step from 41 upper end (box end) of pedestal ball-and-seat enclosure cavity by the first step
Place；
Bottom plate 42 is welded at the step of pedestal cavity 41 by second step, is ensured that bottom plate does not slide, is completed ball-and-seat shell
Assembling.
Referring to Fig. 7, Fig. 7 is the left view of ball-and-seat shell bottom plate provided by the invention.Ball-and-seat shell is for placing list
Stream valve simultaneously limits its position；Ball-and-seat shell bottom plate is designed as overcurrent duct simultaneously, sinks convenient for the impurity in the injecting process
Product, without blocking waterflood path.
A kind of working principle of the sealing distributor with intubation is as follows:
First ball-and-seat is put into ball-and-seat shell, then distributor lower end and cage connection will be sealed, terminates one under shell
Root oil pipe is simultaneously blocked with plug, prevents external high pressure water from entering in pipe.It is with pressure that above-mentioned tool string is placed in outer layer tubing string bottom
In tripping in water injection well.Intubation connection internal layer oil pipe adjusts tubing length installation down toward the ball-and-seat core position of sealing distributor
Well head.The rubber ring of intubation and the seal assembly in sealing distributor, which is formed, to be sealed, and inner and outer tubes annular space is separated, shape
At two mutually independent waterflood paths；The pin of truncation piston component is suppressed from inner tube, pushes piston downlink to open water filling logical
Road normally fills the water.When needing lift pipe string with pressure, first stop to infuse, above propose intubation and ball-and-seat core assembly is driven to go upward to the second annular
At space, sealing distributor water outlet is closed, completely cuts off in the incoming sealing distributor of the high pressure in casing, meets two-tube dispensing
The Operating Pressure demand of " inner tube normal pressure, outer tube are with pressure ".
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of sealing distributor with intubation, which is characterized in that including distributor ontology, intubation and ball-and-seat (30)；It inserts
Pipe is located in the cavity of distributor ontology, and first annular space is formed between cannula outer wall and the first top connection (14), and intubation is outer
The second annular space is formed between wall and inner tube (16), the seal assembly (12) of cannula outer wall and distributor ontology fits, will
Two annular spaces separate；The tail end that intubation stretches out the cavity of distributor ontology is connected with ball-and-seat (30)；When above proposing intubation
When, intubation drives ball-and-seat (30) to go upward at the second annular space, closes the third water outlet on distributor ontology inner tube (16)
Hole.
2. the sealing distributor according to claim 1 with intubation, which is characterized in that the intubation includes intubation tube body
(03), intubation tube body (03) head is set in the second top connection (01), and intubation tube body (03) tail end is equipped with lock claw (06), close
Intubation tube body (03) at lock claw (06) is equipped with the second apopore (04)；The tail end that intubation stretches out distributor ontology cavity passes through
Lock claw (06) is connected with ball-and-seat (30).
3. the sealing distributor according to claim 2 with intubation, which is characterized in that intubation tube body (03) is divided into two
Section, is connected as one by connector (02)；It is intubated to be equipped at tail end connection lock claw (06) of tube body (03) and is used for righting lock claw
(06) the second centering ring (05).
4. the sealing distributor according to claim 3 with intubation, which is characterized in that distributor ontology is helped including first
Positive ring (11), the first centering ring (11) periphery are equipped with the first top connection (14), and the first top connection (14) inner wall lower end is equipped with inner tube
(16), the first top connection (14) outer wall lower end is equipped with outer tube (17)；It is equipped with and lives in gap between inner tube (16) and outer tube (17)
It fills in (13), the tail portion of inner tube (16) and outer tube (17) is arranged with lower contact (18), and outer tube (17) is equipped with the first apopore；Inner tube
(16) seal assembly (12) are equipped with the junction of the first top connection (14)；
Intubation is set in the cavity of distributor ontology, and the first centering ring (11) will be intubated tube body (03) righting and placed in the middle, intubation pipe
Body (03) outer wall and the seal assembly (12) of distributor main body fit, and two annular spaces are separated.
5. the sealing distributor according to claim 4 with intubation, which is characterized in that the seal assembly (12) includes
Annular seal ring and accessory；Inner tube after seal assembly (12) is equipped with spacer ring (15)；
Intubation tube body (03) outer wall fits with seal assembly (12), spacer ring (15) respectively, in intubation tube body (03) and inner tube
(16) the second annular space is formed between.
6. the sealing distributor according to claim 5 with intubation, which is characterized in that piston (13) head passes through pin
It is fixed on inner tube (16), piston (13) tail end corresponds to the first apopore section start；When inner tube is suppressed, fixed piston (13)
Pin be truncated, piston (13) slides to the gap bottom between inner tube (16) and outer tube (17).
7. according to the described in any item sealing distributors with intubation of claim 4-6, which is characterized in that ball-and-seat (30) packet
It including ball-and-seat main body (32), ball-and-seat main body (32) peripheral front end is equipped with the T-type sealing ring (31) being interference fitted with inner tube (16),
Rear end is equipped with the position-limited claw (34) being interference fitted with inner tube (16)；Ball-and-seat main body (32) inner wall is equipped with convex with lock claw (06)
Platform matches the interior step of positioning；The center line of ball-and-seat (30) is equipped with compression bar (35), and compression bar (35) lower part is equipped with spring
(33), the compression bar (35) at spring (33) the initial segment is equipped with convex block；Compression bar (35) end is equipped with the second convex block, and the second convex block is matched
It closes sealing ring (36) and baffle ring (37) realizes the positioning of compression bar (35) jointly.
8. the sealing distributor according to claim 7 with intubation, which is characterized in that ball-and-seat (30) further includes being arranged
In the ball-and-seat shell of ball-and-seat main body (32) outside.
9. the sealing distributor according to claim 8 with intubation, which is characterized in that ball-and-seat shell includes ball-and-seat
Enclosure cavity (41) and the ball-and-seat shell bottom plate (42) for being placed in ball-and-seat enclosure cavity (41) bottom, ball-and-seat shell bottom plate
(42) flowing water duct is distributed on.
10. according to the working method of the described in any item sealing distributors with intubation of claim 6-9, which is characterized in that
The following steps are included:
1) intubation being placed in distributor body cavity body, the seal assembly (12) of cannula outer wall and distributor ontology fits, every
First annular space and the second annular space are opened, to separate the inside and outside waterflood path of intubation；
2) behind tool tubular column tripping in predetermined position, piston (13) are opened from the interior pin for suppressing truncation piston (13) of inner tube (16)
Normal water filling；
3) when needing lift pipe string with pressure, first stop to infuse, above propose intubation and drive at ball-and-seat (30) row to the second annular space, it will
The third water outlet of distributor ontology inner tube is closed, and the incoming sealing distributor top of high pressure water in casing is completely cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168612.6A CN109113694B (en) | 2018-10-08 | 2018-10-08 | Sealing injection allocation device with cannula and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168612.6A CN109113694B (en) | 2018-10-08 | 2018-10-08 | Sealing injection allocation device with cannula and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109113694A true CN109113694A (en) | 2019-01-01 |
| CN109113694B CN109113694B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811168612.6A Active CN109113694B (en) | 2018-10-08 | 2018-10-08 | Sealing injection allocation device with cannula and working method thereof |
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| CN (1) | CN109113694B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259422A (en) * | 2019-07-05 | 2019-09-20 | 中国石油天然气股份有限公司 | The two-tube dispensing operation device under pressure of one kind and method |
| CN111305789A (en) * | 2020-02-25 | 2020-06-19 | 中国海洋石油集团有限公司 | Thermal recovery leakage-proof circulating sliding sleeve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110259422A (en) * | 2019-07-05 | 2019-09-20 | 中国石油天然气股份有限公司 | The two-tube dispensing operation device under pressure of one kind and method |
| CN110259422B (en) * | 2019-07-05 | 2023-11-28 | 中国石油天然气股份有限公司 | Double-pipe separate injection operation device and method under pressure |
| CN111305789A (en) * | 2020-02-25 | 2020-06-19 | 中国海洋石油集团有限公司 | Thermal recovery leakage-proof circulating sliding sleeve |
| CN111305789B (en) * | 2020-02-25 | 2022-05-03 | 中国海洋石油集团有限公司 | Thermal recovery leakage-proof circulating sliding sleeve |
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